Data integration: a theoretical perspective

  • Authors:
  • Maurizio Lenzerini

  • Affiliations:
  • Università di Roma "La Sapienza", Via Salaria 113, I-00198 Roma, Italy

  • Venue:
  • Proceedings of the twenty-first ACM SIGMOD-SIGACT-SIGART symposium on Principles of database systems
  • Year:
  • 2002

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Abstract

Data integration is the problem of combining data residing at different sources, and providing the user with a unified view of these data. The problem of designing data integration systems is important in current real world applications, and is characterized by a number of issues that are interesting from a theoretical point of view. This document presents on overview of the material to be presented in a tutorial on data integration. The tutorial is focused on some of the theoretical issues that are relevant for data integration. Special attention will be devoted to the following aspects: modeling a data integration application, processing queries in data integration, dealing with inconsistent data sources, and reasoning on queries.